#include "queue.h"
#include "stack.h"
#include <iostream>

int main()
{
	queue line;
	stack s;
	bool success;

	for(int i=1; i<=4; ++i)
	{
		line.push(i);
		s.push(i);
	}

	std::cout << line.front() << std::endl;
	line.pop();
	std::cout << line.front() << std::endl;

	std::cout << s.top() << std::endl;

	return 0;
}
